I've come across some interesting aircraft from both the Allies and the Axis that were modified for maritime Minesweeping/Degaussing duties.

I found it interesting to see that the aircraft were field modified to perform these duties and in many cases, weren't a dedicated production version from the manufacturer.

So I started digging around to see just how many types there were, and I'll be posting what I've found so far.

The one with the most information, is the Ju52 version, so I'll start with that

Ju52/3M MS
A standard production Ju52 was given the designation MS (minesweeper) and fitted with a loop (coil) and electric generator. They were operated from land based airfields. I haven't found how many were made, but they were operated from 1943 onward.

This last photo shows Ju52/3M MS (W.Nr. 3400) of 1./MSGr 1 caught by Typhoons of 266 Squadron off Ile de Croiz, 30 December 1943. Uffz Johann Stampfer and his crew were all killed.

Bv138C-1/MS
This was an unarmed flying boat that carried a full degaussing loop and generating equipment onboard.

The "MS" version was based on the C-1 and operated from 1941 onward. I haven't found out how many were made or what thier length of operations were, but since none of the Bv138 aircraft survived the war, it couldn't have been many.

LeO 451
The LeO451 is a French medium bomber produced between 1938 and 1940. After the armistice, an agreement was made between the Germans and the Vichy French goverment in 1942 to restart production for a number of variants.

One of the types was the LeO451 359. It was fitted with a degauissing coil and generating equipment, though I haven't found out how many units were made.

The British converted a number of Vickers Wellington bombers into a minesweeper by fitting it with a coil and generating equipment. 4 of these were based on the Mark Ia frame and designated the DWI Mark I and later about 11 more were outfitted and upgraded, carrying the designation DWI Mark II.

From what I've found, it was used in the Mediterranean theater as well as at home in England under Coastal Command from about 1940 to the close of the war.

Interesting material Dave. Did you notice the BV138, both outer engines wore three blade props and the center engine has a four blade. I had not seen that before. How effective were these aircraft. I have not ever seen a photo of one actually detonating a mine. Just curious.

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refer to Dirks modeling link of the Ju 52 Mausi page, we discussed some references in regards to the most successful LW unit doing the de-bug of ocean mines. the Bv 138 was not used in this role much but more for low level recon duties and rescue of LW and German navy personell in northern waters.

Erich, I noticed that MinenSuchGruppen 1 was outfitted with Ju52 MS aircraft, but I never did see a reference as to who operated the few Bv138/MS or Ha139B/MS aircraft. Were these more for more specialized Operations with the aircraft being attached to a specific naval unit, perhaps?